Unit for the heat treatment of yarn wound on bobbins



NOV- 22, 1966 v. v. VORONIN ETAI. 3,286,320

` UNIT FOR THE HEAT TREATMENT OF' YARN WOUND ON BOBBINS Filed July 17, 1964 f'l. la

23 WWU y Ml if 1V W1; ni? i# wr WW NOV 22, 1966 v. v. voRoNlN ETAL 3,286,320

UNIT FOR THE HEAT TREATMENT OF YARN WOUND ON BOBBINS Filed July 17, 1964 5 Sheets-Shea?l 2 uumlr?? @gli iis N= Nov. 22', 1966 v. v. voRoNlN ETAL 3,286,320

UNIT FOR THE HEAT TREATMENT OF' YARN WOUND ON BOBBINS Filed July 17, 1964 5 Sheets-Sheet 5 Nov. 22, 1966 v. v. voRoNlN ETAL 3,286,320

UNIT FOR THE HEAT TREATMENT 0F YARN woUND oN BoBBlNs Filed July 1'7, 1964 5 Sheets-Sheet 4 Nov. 22, 1966 v. v. voRoNlN ETAL 3,286,320

UNIT FOR THE HEAT TREATMENT OF YARN WOUND ON BOBBINS Filed July 17, 1964 v 5 Sheets-Sheet 5 United States Patent O 3,286,320 UNIT FOR THE HEAT TREATMENT OF YARN WOUND N. BOBBINS Vasily Vasiljevich Voronin, Konstantin Vasiljevich Panov, Jakov Nikiforovich Mikhailik, Igor Alexandrovich Kokolevsky, Dmitry Trolmovich Pekov, Sergei Nickolaevich Fedorov, Petr Dmitrievich Zorin, Victor Nikiforovich Solomin, and Vasily Vasiljevich Pomolotov, all of Moscow, U.S.S.R., assignors to Kruzllevnaja Gardinno-Tulevaja Fabrika im. E. Teljmana Filed July 17, 1964, Ser. No. 383,445 3 Claims. (Cl. 28-58) The present invention relates to bobbins for machines producing lace fabrics, and more particularly to units for the treatment of yarn wound on bobbins.

It is common practice to performheat tre-atment of yarn on 'bobbins in machines producing lace fabrics by successive manual loading and unloading of the bobbins in the steaming, drying and cooling chambers. This process of treatment is time-consuming, and requires -a large production area and considerable hand labor for loading and unloadi-ng the bobbins. f

More-over, during the above treatment the processing conditions in the chambers, i.e. temperature and humidity are unstable, which results in low quality of the processed yarn.

These drawbacks can be eliminated Iby means of a unit comprising steaming, drying yand cooling chambers mounted on `a comm-on frame and connected with each other, a conveyor for transporting the bobbins through all the chambers, a pipeline for supplying air in each chamber .and a conveyor drive formed as a horizontal endless chain with supporting platforms and disks, each disk having an aperture for the mounting of an axle and a bobbin, said disks being freely mounted to rotate about their axles, which permits the bobbins to be treated by the surrounding medium from all si-des.

An object of the present invention is to ensure continuous processing of the bobbins.

Another object of the invention is to reduce the time required for the treatment.

An important further object of the invention is to improve the quality of produced yarn.

Still another object of the invention is to provide stable processing conditions.

In accordance with the aforementioned and other objects, the present invention is directed to an embodiment of a processing unit, modifications and variations of which may be made without departing from the spirit and scope of the invention.

For a better understanding of the invention an embodiment thereof will fbe described with reference to annexed drawings, wherein:

FIGURES 1 and 1a illustrate in plan elevation, respectively, the unit for heat treatment of yarn wound on bobbins for use in machines `for producing lace fabrics;

FIG. 2 is a sectional view of a steaming chamber taken 'along 'line AA of FIG. 1;

FIG. 3 is `a sectional vie-w of a dryin-g chamber taken along line BB of FIG. l;

FIG. 4 is a sectional view of a cooling chamber taken `along line CC of FIG. 1;

FIG. 5 diagrammatically illustrates the conveyor drive;

FIGURES 6 and v6a illustrate in plan and elevation, respectively, the bobbin on which the yarn is wound.

On an annular frame 1 (FIG. l) are mounted in sequence according to the intended operations, a vsteaming chamber 2, two drying chambers 3 and 4 an-d two cooling chambers 5 and 6.

For the feed of the bobbins there is provided a horizontal endless chain 7 mounted on frame 1 (FIG. 2),

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said frame bearing supporting platforms 8 with disks 9, each having an opening for mounting an axle 10 with a previously set bobbin 11 as is shown in FIG. 6. Supporting platforms 8 are separated from each other by partitions 12. All chambers at the places of their cornmunication with each other are connected by an additional casing 13 (FIG. l) having t-he same shape as partitions 12, said casing together with said partitions providing good isolation between chambers.

Air supply t-o the chambers is provided by an air duct 14 .arranged on the frame in the center of the unit and connected at one end with a fan (not shown in the drawing) and at the other end through branch pipes 15, 16, 17, 18 and 19 with chambers 2, 3, 4, 5, and 6. For the purpose of controlling air supply in the branch pipes there are provided slides 20, 21 and 22. Temperature control is effected 4by means of a thermometer 23 installed in each chamber. Chain 7 (FIG. 5) is driven from electric motor 24 through reducer 25, spur gears 26 and 27, chain transmission 28 and 29, bevel gears 30 and 31 and sprocket 32. The motion of chain 7 causes disks 9 (FIG. 2) to be turned by means of sprocket 33 and chain 34, mounted on frame 1. The disk rotation ensures processing of bobbins 11 from al'l sides.

Stearning chamber 2 is made of sheet member 35, between the sheets of wlhichis placed a layer of insulating material 36. At the top of the chamber is provided a removable cover 37, and `iixed to the interior surface of the chamber is exhaust pipe 15. The chamber is provided with an evaporator 38 and a heater 39. The evaporator is formed as a compartment extending through the whole chamber. Above the evaporator are disposed small pipes 40 from which water is supplied into the evaporator. These pipes are connected with pipe 41. Water is heated by electric coils 42, 43, 44 and 45. The excess water formed at the engagement and disengagement of the unit is discharged through pipe 46.

Drying chamber 3 (FIG. 3) is made of iron sheets 47 (FIG. 3) between which is placed heat insulating material 48. At the top of chamber 3 is a removable cover 49. Mounted on the side wall of t-he Ichamber are heat insulating rollers 50 supporting electric heating coil 51 in FIG. 3. The ow in chamber 3 is indicated by arrows.

Chamber 4 (FIG. 1) is similar in design to chamber 3.

Cooling chamber 5 (FIG. 4) is made of iron sheets 52 between which is placed heat insulating material 53. At the top `of chamber 5 is a removable cover S4. Through the whole length of the chamber runs a radiator composed of ns 55 and water tubes 56. The water is supplied from a pipe 57. The chamber is provided with 1an air vent 58 in FIG. 4. The -direction of the air flow is shown by arrows.

Chamber 6 is similar in design to chamber 5.

The unit operates `as follows.

In the course of a period of 20-25 minutes the following temperature conditions are established in the chambers:

(a) 130 to 140 C. in steaming chamber 2,

(b) 200 to 220 C. in drying chambers 3 and 4,

(c) 25 to 35 C. in cooling chambers 5 and 6.

When these temperatures are reached, motor 24 (FIG. 5) is engaged and drives chain 7 through redu-cer 25, gears 26, 27, chain transmission 28, 29, bevel gears 30, 31 and spocket 32.

Bolb'bins 11 are advanced through all the chambers together with chain 7 (FIGS. l, 2), said bobbins having Y been previously mounted on axles 10 which in turn are In drying chambers 3 and 4 the yarn is dried with heated air for 14 minutes.

In cooling chambers 5 and 6 the bobbins remain for 14 minutes.

The whole processing cycle is completed in 40 minutes.

vWhen the bobbins come out of cooling chamber 6 they are removed from supporting platforms `8, and the latter are loaded with new boibbins, after which the Whole cycle is repeated.

Thus the whole process of bobbin treatment is effected continuously in the unit.

What we claim is:

1. A unit for the heat treatment of yarn Wound on ,bobbins for producing laoe fabrics, comprising a frame, a steaming chamber, at least one drying and at least one cooling chamber, said chambers being interconnected in sequence and mounted on said frame; means arranged on said frame for transporting the bo'blbins through all the chambers and insuring a continuous processing of said lbobbins; means mounted on said frame for interconnecting said chambers to permit passage of said boblbins While insuring isolation between said chambers; means mounted on .said frame for supplying air to said chambers, and drive means for said means for transporting the bobbins through the chambers. y

2. A unit for the heat treatment of yarn wound on bobbins for producing lace fabrics, comprising a frame,

a ysteaming chamber, at least one drying and at least one cooling chamber, said chambers being interconnected in Asequence and mounted on said frame; a horizontal endless chain mounted on said frame passing through all the chambers and adapted for transporting the'bobbins; supporting platforms mounted on said chain each including a rotating disk with an opening for the installation of a bobbing drive means for said chain supported on said frame; means mounted on the frame and coupled to said drive means for rotating said disks; means mounted on said 'frame for supplying -air into said chambers, and means mounted on said frame for interconnecting the chambers to permit passage of said bobbins therebetweeen while insuring isolation of the chambers so that stable process conditions are maintained therein.

3. A unit as claimed in claim 2, comprising partitions `arranged on said supporting platforms separating said platforms from each other; said means interconnecting the chambers comprising additional casings mounted on the frame and joining the chambers together, said casing having a shape similar to the shape yof said partitions, said casing together with the partitions insuring the isolation of the chambers. l H

References Cited by the Examiner UNITED STATES PATENTS 2,421,334 5/1947 Kline et a1. 57-157 2,962,857 .i2/1960 Wood et ai 57-151 MERVIN STEIN, Primary Examiner.

DONALD W. PARKER, Exalmner. L. K. RIMRODT, Assistant Exdminer. 

1. A UNIT FOR THE HEAT TREATMENT OF YARN WOUND ON BOBBINS FOR PRODUCING LACE FABRICS, COMPRISING A FRAME, A STEAMING CHAMBER, AT LEAST ONE DRYING AND AT LEAST ONE COOLING CHAMBER, SAID CHAMBERS BEING INTERCONNECTED IN SEQUENCE AND MOUNTED ON SAID FRAME; MEANS ARRANGED ON SAID FRAME FOR TRANSPORTING THE BOBBINS THROUGH ALL THE CHAMBERS AND INSURING A CONTINUOUS PROCESSING OF SAID BOBBINS; MEANS MOUNTED ON SAID FRAME FOR INTERCONNECTING SAID CHAMBERS TO PERMIT PASSAGE OF SAID BOBBINS WHILE INSURING ISOLATION BETWEEN SAID CHAMBERS; MEANS MOUNTED ON SAID FRAME FOR SUPPLYING AIR TO SAID CHAMBERS, AND DRIVE MEANS FOR SAID MEANS FOR TRANSPORTING THE BOBBINS THROUGH THE CHAMBERS. 